// Copyright 2024 The Google Research Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include <array>
#include <fstream>
#include <iostream>
#include <string>
#include <unordered_set>
#include <vector>

#include "unfoldings.h"

int main(int argc, char** argv) {
  if (argc > 2) {
    std::cerr << "too many arguments, either provide no argument and input "
                 "from stdin or give only one filename"
              << std::endl;
    return 1;
  }
  std::ifstream input_file;
  if (argc == 2) {
    input_file = std::ifstream(argv[1]);
  }
  std::istream& input = (argc == 2) ? input_file : std::cin;

  size_t counter = 0;
  for (std::string line; std::getline(input, line);) {
    counter += cube_unfoldings::NumberOfUniqueMatchings(line.data());
  }
  printf("%lu\n", counter);
  return 0;
}
